Lenses Question Preview (ID: 52043)


Characteristics Of Converging Lens. TEACHERS: click here for quick copy question ID numbers.

Lenses always
a) emerges rays of light
b) reflects rays of light
c) refracts and reflects rays of light
d) None of the above choices

Converging lens :
a) Thick at center thin at edges
b) thin at center thick at edges
c) thin at center and edges
d) thick at center and edges

Object point focus F is in
a) other direction of light
b) within the direction of light
c) at the center of lens
d) None of the above choices

The center of lens is called
a) point center
b) object focus point
c) image focus point
d) optical center

F' is called
a) optical center
b) object focus point
c) Image focus point
d) object point

The Horizontal line passing through the center of lens is called
a) axis of lens
b) Optical axis
c) line of symmetry
d) None of the above choices

Any ray passing through the optical center of lens emerges:
a) emerges passing through F'
b) emerges away from the lens
c) without deviation
d) None of the above choices

An incident ray hits the lens parallel to optical axis emerges :
a) away from the lens
b) without deviation
c) passing through F'
d) None of the above choices

An incident ray hits the lens passing through F emerges :
a) without deviation
b) Parallel to optical axis
c) passing through F'
d) None of the above choices

The converging lens give real image for areal object except one case when the object is between:
a) f and 2f
b) greatr than f
c) equals to f
d) Between F and O

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